Digitel GSM mobile does not have any exclusive online platform to directly interact with the Digitel GSM customer executive through live chat option. So

>Welcome mail /SMS option

If you have welcome mail that you got when buying the Digitel sim card, you can directly note the PUK code printed in the mail and enter it in your locked mobile phone.Currently Digitel GSM mobile do not provide option for obtaining PUK code through SMS.

So, Please
try any one of the above methods to retrieve you PUK code.

Maximum Limit for PUK code entering is 10 attempts. Then the SIM be be blocked and need to replace with anew SIM card . So better be careful while entering PUK code